Burner for stoves



H. B. HEMPHILL. BURNER F0R\ST0VES. APPLICATION FILED MAYi Patented ont. 4, 1921,

3 SHEETS-SHEET l.

H. B. HEMPHILL.

BURNER FOR STOVES. l APPLICATIGN FILED MAY1,1920.

1,392,641/3. Patented 0@t.4,'1921.

H. B. HEIVIPHILL.

BURNER FOR STOVES APPLICATION FILED IIIAYI 1920.

Patented. oct. 4, 1921. l

3 SHEETS-SHEET 3.

.HENRY B. HEMEHIL, 0F ELDORADCI, ILLINGIS, .ASSIG-N AN'I'GNIO BUCDVAZ AND GRE-FOURTH T0 RAFFAELE RABO, ELLEN GIS.

BURNER FOR STVES.

i ,siennes Application filed May 1,

i which reim-ence beinghad to the accompanying drawings.

This invention relates to an iiiipioved burner for stoves and an object is to rovide a device ot' this kind which is practical, simple and cticient in construction and can be cheaply made and sold at a reasonable prolit.A

Another object is to provide a bui'ner which is automatic in operation and is ca pable ot' giving ay ,great amount ot' heat with a relatively small supply of fuel, and furthermore to provide a burner particularly adapted and constructed for using oil, preferably a natural crude oil and also to so construct the burner that a relatively small amount oli oil or fuel ma)` be containedl in the tire pot or cup but which will be sutilcient to generate sufficient. heat.

Still another object .is the provision of a burner including an air chamber to pci'-` mit a pioper aniount ot' air to mix with the vapor from the oil to insure a proper com bui-:tion ci" the t'ucl l'or burning purposes.

.Ik further object is the provision of a l'uel cup in which the fuel is fed and wherein the fuel is rapen-ized owing' to the heat on the interior olI the store.

still further object the provision of a lire pot disposed under the fuel cup including a coil wire fabric oi' eauze or metallic wool in the, bottoni thereor and into which lire box the oferd'low 'ot' the oil from the cup passes, and should 'there be any overilow from the tire box it will pass into the airl chamber below the box; in order to be drawn oit4 i'lso 'the invention ainis to provide means t'or battling;r or confining the products of combustion so as to prevent then; from passing upwardly and. outwardly 'from the stove.

Furthermore the invention aims to provide a .lire pot whif'h is adjustable relatively to 'the burner cup, and which acts to regie late the. supply of air throng-h the air charnber. ln other words., by lowering the tire pot on the main air tube, the an` rising up- Specication of Letters Patent.

1920. Serial o. 378,049.

0R OF ONE-FGURTH TG CLVORA, BOTH OF ELBO- ltlatented Get. 4e, 192i.,

wai-dly through the air chamber will be more or less retarded and by raising the. lire pot on the main air tube relatively to the air chamber, a greater and freer supply of air is allowed to rise and cause a better combustion ot the fuel.

Moreover, it is the aim to provide ,an asbestos filling surrounding the oil cup, in order to insure a better burning of the; fuel7 and to avoid an excessive oVcnliow ofthe i'ucl from the cup, for asbestos will act as a Wi draw the fuel or from the wick.

Also it is the the Valve of the 'valve in its open aim to the reason that the ck, and will tend to oilso that it can be burned provide means on supply pipe to limit the position in order to limit1 the supply or" fuel to the cup according t0 the size of the stove casing and the size of the tire pot and the burner relatively to the size of the room to be heated.

In other words, the valve is capable of being opened a certain certain requisite to enter the cup distance so that a quantity ot' oil is allowed and no more.

The valve can be closed so as to decrease the flow of oil, but the valve requisite quantity of oil ter the cup according to in which the the room to be heated.

is permitted to enthe size of the stove burner is' used and the size of The invention comprises further features and combination of parts, as inaftcr set forth, shown in the claimed.

n the drawings Figure l will be heredrawings and is al vertical sectional View through the inipi'orcd burner, showing the same mounted in a ca niainlv as an oil burnin Fig. 2 is a transverse illustratingr thc fact that line 2 2 of Fig. l,

sing

g stove,

sectional View on the air chamber has a plurality ot' air tubes, say for instance, tour in number rising upwardly from the bottom Fig. 3 is an enlarged oil cup,` the oil jet sleeve, all or" which proper,

Fig. 4 is an enlarged controlling valve mounted on the of the air chamber, detail View of the and the adjustable jet constitute the burner ydetail View of the pipe from the oil tank to the oil burner cup,

showing means whereby in its open position so a the Valve'is limited s to permit a maxi- Surply isliinited So that but a and employed i mum flow of oil to the burner cup, according to .the size of the burner and stove and acvcording to the size of the room to be heated.

Fig. 5 is a sectional View on line 5-5 of Fi 4. ig. 6 is a view partly in elevation and partly in section of a coal burning stove, equipped with the improved oil burner, thereby converting the coal burning stove into an oil burning, stove.

Fig. 7 is an enlarged detail sectional view `through the fire pot, the air chamber, the

.thereto, as by means of the bracket 4, is an 'ejil or fuel tank 5. A tube or pipe is communicatively connected to the top of the tank 5, and engages through the wall of the main or stove casmg 1 and extends upwardly into the flue 4 so as to carry off any gas which may collect between the level of the oil or fuel and the top of the tank. A pipe 7 I order to hold the tube 16 secure.

is connected to the bottom of the tank and is provided with a valve 8 and a trap 9. The trap 9 is provided for the purpose of reventing the flame or heat from trave in back through the pipe or tube into the fue or oil, which would cause combustion. This tube or pipe 7 passes through the wall of' the main or stove casin and is provided with a downwardly turne en d 10, which is disposed concentrically over the burner. The tank 5 has a filling opening 11 whereby the fuel may be allowed to enter the tank. Mounted on the side of the tank is a conventional form of gage 12 for the purpose ofv indicating the level of the oil or fuel in the tank.

Themain or stove casing which is co structed preferably in the shape as shown in Fig. 1 as its base 13 provided with a flanged opening 13b, the flange 13 of which extends inwardly. Fitted in the opening 131 of the base 13a is an air chamber 14, the wall 13 of which is tapered as shown. Rising upwardly from the bottom of the air chamber 14 is a combined burner and air tube 16. Thelower. Aend of this tube 16 is threaded into the bottom of the air chamber 14, there` being a shoulder 18 to limit the downward movement of the tube 16. A nut 19"l is threaded on' the lower"l end of the tube 16 in Also ris-- ing from and threaded into the bottom of the air chamber 14, and communicating with the atmosphere under the stove is a plurality of air tubes 15 through which air is allowed to enter the air chamber 14. Adjustably mounted -upon the air tube 16 by means of neeaees be noted that the fire pot is capable of ad-v justment on the tube relatively to the air chamber 14 and relatively to the burner, so as to regulate the burning-of the oil and so as to regulate the air rising from the air 'chamber 14. Connected to the upper end of the combined oil cup support and air tube 16 by Vmeans of threads or the like shown at 16l is a hollow T 19. This T has a second air chamber 2O and connected to the ends of the T as'by means of the unions or caps 2l are elbows 22 which support the outlet air tubes 23 in order to permit the escape 'of air from the chamber 20 of the T casing.

Elbows 24 are the T and support outlet air tubes 25. Supported upon the T is a burner cup 26 into which the crude oil or fuel is received and A I from which the fumes rise and mix with the air escaping from the tubes 23. After the burner is once started, the oil or fuel vaporizes. The down-turned end of the pipe 7 has adjustabl connected thereto as at 27 Vthe sleeve 28, t e lower portion 29 of connected Vto the sides of war ly into the air chamber 14 through t e base of the casing 1 and together with the air emanating from the upturned air tubes 23, a proper combustion of the fuel is assured.

In surrounding relation to the adjustable jet sleeve 28 and resting upon the upper -marginal ed e of the oil cup is an asbestos cord 27b which acts to absorb the oil from the cup and from which the oil burns as the oil is attracted thereby. Butna very small quantity of oil is allowed to 'enterthe oil cup, and it will be noted that the lower mary by the asbestos cord. However, should the valve 8 be opened to its fullest extent increasing the flow of oil, the level of the oil will be raised slightly so that the oil will iso Aflow of the fuel from the Slightly overllow tion ot' the side oi the oi ease the oil enters the tire ,l with it the llame.y 'lf and ,spread through the. met, fire pot, and will burn otr, the heat in the Stove.

Arranged in the bottoni of the tire is a filling ot' coiled metalli@ wool 33.

the npr-f.

pot l? Wire gauze or fabric, or Should there be an overtire pot into the bottom of the air eliamber, the over-flow of the oil or fuel may be drawn off by the drain cock lywhieh is carried by 'the base of the Stove. A pan l5 is of the main or stove easing Ceive the drainage from the rchamber l1. Surrounding the air lumber le and within the stove easing' a dead air Space 3b.

A conical baille or detaining;t or confiningmember. 38 is ar ringed above the burner cup2 and which is supported by the brackets 37. The lower portion of this baille orheat contaetinlgr member iS relatively large, while the upper end thereof terminatesin a relatively small opening 3i). Ae the heat rises from the burner it passes out through the opening 3f) and into the combustion chamber All), and it finally passes off from the stove to the atmosphere through the pipe or iluc fl-l. suitable door 42 is carried by the main or stove cas ing l and through which r ense may be had to the interior ol the sto* 'e ljuetiug or repairing the burner. ia om ione that an operator may open the and adjust the tire pot 17 upon the tube t6,

In the operation, the oil or fuel vtrom the tank is allowed Ato llow into the burner cup Where it is tiret ignited, and as the burner heats up, the vaporizing ot the oil or other fuel in its crudo state is; greatly facilitated, and owing' to air being lallowed to pass through the tube 6, and out through the tubes 23 and allowed to emanate from 'the tubes l5, proper' combuetion and vaporizing ot' the fuel is assured.

B means ot the Sleeve being submerged in order to rein tie oil or Yt'uel iu the burner eup there will be no flame adjacent the oil als-:o no soot or carbon can collect on the oil jet thereby eliminating any pos. the flow ot' oil in the Cup. When the 4oil is turned `on and a full blast fire oil in the cup over-Hows the cup and into .the tire pot 1T carrying with it the llame,

and then in such cane the level ot' the oil will he substantially 5; deep. As the T supports the oil rup over the fire pot l", air is Supplied to the tire pot through the medium et the;y T and the tir tube 16. l

,lVith a burner of this liind there is aliv a relatively small supply of oil in burner, say tor instante, about pint* Carried by the valve Stem ot the valve 8 is dispoeed under the base is ballled and eventually' .bility ot hindering results, the

lt will noted that when the which is d jeetion. 3d. burner equipped ,in a easing' as shown in l, the valve is set accordinzeA to the n'iaximurn flow ot oil, relatively to the size ot casing and accordingr to the room to be heated. The collar 8 is then positioned and retained in such position by the set Screw 5",- thereby permittingl a maximum quantity o1" oil to pase' through the supply never more than a requisite maximum llou'ever, it is obvious that the i' may be Lgradiuilly closed to decrease the llow of oil.

l there is disclosed an ordinary coal stove in which the improved burner is mounted` resting upon the grate. The burner in this case is slightly modified in detail, but the broad principle and the broad construction are practically the same a5 in Fins. l-:'. lu Fig; fi since the burner reels upon the grate of the casing l., and as there are no openings in the bottom of the easing l it is neeesSary to adjust the draft door lb n'hieh closes the opening l". In other words by regulating the door 4l it is possible to govern the drat't through the grate in order to permit ot' the proper combustion ot' the t'uel around the burner.

rlhe inventionhavine been Set tortlnivhat is claimed ae new and useful iszt. ln a device. as Set t'orth, the combination with a casing'. au oil cup mounted therein, a `gravity feed oil Supply pipe for carrying a relatively Small but constant How ot' oil into the eup, a combined burner support and air supply tube rising upwardly from the bottom ot' the caiugi and terminating in a plurality ot branch tubes, termihating at diametrieally opposite points relatively to the cup for permitting air to mix with the vapor fromzthe fuel in the cup.

2i In a device as set forth, a stove casing, an oi] or tuel cup therein. a gravity oil Supply pipe having a doivuturued end rom-e11- trie with and terniiuatirmr in au oil jet euterinf*1V the cup, an adjustable sleeve ou the do\vnturned end and entering the cup` and means for supporting the cup iu the :stove casing.

3. ln a device ai: Set forth, a stove casing, an oil or fuel eup therein, a gravity oil supply pipe having a d'ownturned end coureutrii; with and terminating in au oil Aiet entering the cup, an adiustal/-le sleeve ou the. downturned end and entering the cup, means For supporting the eup in the casing, a fire pot under the cup and mounted upon the support, and a batlling member above the cup.

a device aS eet 1to1-th, a easing7 an oil rel therein, a gravity oil sur ply pipe haring a dowuturned end concenhaving air outlet -ing communications yfrom the bottom o `tric with andterminating in an` oil jet en- .tering the cup, an adjustable sleeve on the downturned end and enterinr the cup,means for supporting the cup in the casing, a lire pot under the cup and mounted upon the support, an air chamber surrounding the fire pot, means to supply air therethrough in order to assure and facilitate-a proper vaporization of' the fuel in the cup, and a heat baflling member above the cup.

5. In a device as set forth, a casing, a burner cup therein, a gravity oil feed sup* ply pipe having a downturned end over the cup, a sleeve entering the cup and being connected to the downturned end, means for supplying air vto the interior of the casing in close proximity to the cup to'insure vaporization of the fuel in the cup, means projecting from the bottom of the casing to admlt an extra supply of air, which circulates about the cupto additionally insure the va-porizati'on of the fuel, a heat baliiing member arranged over the cup, and having its lower end of a relatively large diameter and having at its upper end an opening of relatively small diameter, and a combustion chamber above said baliling member.

6. In a "device for the purpose indicated, a stove casing, a burner cup therein, means for feeding a constant but relatively small fiow Vof oil into the cup, a combined burner -support and air supply pipe rising up- Wardly from the bottom of the stove casing,

and supporting said cup and terminating in air tubes to conve air to the space above the lcup to assure tie vaporization of the fuel, a fire pot below the cup, and a filling of material in the fire pot through which the oil circulates and gradually burns for increasingthe heat in the casing.

7. In an apparatus as set forth, a casing, an air chamber in the bottom thereof havwith the atmosphere under the casing, -an air tube rising upwardly fromthe air chamber, a fire pot adjustable on the air tube, a second air chamber at theupper end of the air tube and branch tubes, an oil burner cup mounted on the wall of the second air chamber, an oilffeed pipe terminating in a jet extending into the cup, and a sleeve adjustable on the jet.

8. In an apparatus for the purpose indi# cated, a casing, an air chamber supported on the bottom of the casing and having communications with the atmosphere under the casing, an lair sup ly tube rising upwardly the air chamber and communicating with the atmosphere under the casing, rsaid air supply tube terminating at .its upper end in a second air chamber, a burner proper supported on the wall of the second air chamber, the second air chamber having outlets whereby air from the air and 'a fire pot carried' by the airterminating in a second air chamber, af

burner resting on the second air chamber, a fire pot carried by the air supply tube and being adjustable -relatively to the first'aii chamber below and the, burner proper to` .regulate the air supplyA surrounding theV burner.

l0. In an apparatus for the purpose indi-v cated, a casing, an air chamber at the bottom of the casing' and communicating with the atmos,i-'.ere hereundur,4 anair supply tube terminating in a second air chamber at its upper end,` a burner resting on the second air chamber, said second air chamber having communication with the space within the casing and around the burner to supply air thereto, and a-lire pot carried on the air supply tube and adjustable relatively to the first air chamber at the bottom 'ot the casing,

to govern the air supply from` the first alr chamber through the space between the fire ot and the casing and the space surround- 'Y ing the burner, in orderv t regulate the com-l bustion of the fuel. A

11. In a device as set forth, a casing, an air chamber at the bottom `of .the casing and communicating with the atmosphere thereunder, an air supply tube terminating in a second air chamber at its upper end, a burner on the second air chamber, said second air chamber having communication with the space within the casing j around the burner proper to supply air thereto, a fire pot carried on the air supply tube adjustable relatively to the first air chamber at the bottom of the burner, to govern the first air supply. from the first air chamber through the space between the fire pot and the wall of vsaid'air chamber, in order to regulate the combustion of the fuel, said burner comprising'an oil burner cup, a supply pipe terminatlng 1n a jet entering y the cup, a sleeve adjustable on the jet to govern the oil in its fiow into the cup,'andA means surrounding the sleeve for absorbing the fuel from the cup.

12. In a device as set forth, a casing, an

air supply tube rising upwardly from the bottom thereof and communicating ,with the atmosphere'under the easing and terminating in an air chamber, a burner proper neeaeae supported on said air chamber and comprising an oil receiving burner cup, an oil supply tube terminating in a jet entering the cup, asleere mounted on the liet and extend ing within the cup and having passages at its lower portion to permit the oil to enter the cup, and means surrounding the sleeve and supported on the marginal portion of e cup' to absorb the oil from the cup.

13. In a device as settorth, a casing, an air tube carried by the bottom of the cas- .ing and communicating with the atmosphere thereunder and terminating in an air chamber, a'lourner proper supported on said air chamber and comprising an oil cup, a relatively small oil feed jet extending into the cup.y a sleeve adjustable on the oil Yfeed jet and adjustable relatively to the bottom. ot t e oil cup for controlling the oil in its How into the Cup. y

14. n a device for the purpose indicated, a casing, an air tube carried by the bottom et the casing and communicating with the atmosphere thereunder and terminating in an air chamber; a burner proper supported on said air chamber and comprising an oil cup. a relatively small oil feed jet extending into the cup, a sleeve adjustable on the jet and adjustable relatively to the bottom of the oil cup forcontrolling the oil in its 'How into the cup, and an asbestos meniber surrounding the sleeve and supported on the edge of the oil cup to absorb the 'oil from the cup.

15. In a device for the purpose indicated, a casing, an air tube carried by the bottom of the casing and communicating with the atmosphere thereunder', a burner proper at the upper end of the' air tube comprising an oil cup, a relatively small-oil feed jet extending in the cup, a sleeve adjustable on the Iiet and adjustable relatively to the bottoni/,vof the oil cup for Controlling the oil in its flow into the cup. and/'means for supplying the oil to the iet and including a. device for permitting a maximum quantity ot' oil to feed through the 16. lin a desfile tor the purpose indicated,

a casino an air chamber su morted on Ythe h w l n a base ot te casing, an air tube rising up- Wardly kom said air alarmbel' and terminating at its top in a second air chamber and provided with air branch tubes. a burner supported on the second air chamber, an oil feed for the burner end extending downwardly thereinto, and a l'ire pot adjustable on the air tube relatively to the two air chambers. v

17. In e device for the purpose indicated, a common oil stove casing, an air chamber supported on the base thereof, an air tube rising upwardly from the airchamber and communicating with the atmosphere under the air chamber, a Ere pot mounted on the lot the air tube for adjusment into and from the air chamber, means conununicatively con necting' the aii` chamber and the atmosphere under tl a air chamber, a second air chamber at the top of; the air tube, a burner supported on the second air chamber, a gravity oil 'toed pipe having a downturned end terminating in a jet within the burner, a burner cup, and a fibrous absorbent mounted in the cup.

18. ln a device for the purpose indicated, a casing. an air tube carried by the bottom casing and communicating with the atmosphere thereunder, a burner adjacent the upper end ot the air tube comprising an oil cup, an oil feed jet extending' into the cup, a feed pipe tor said jet, means on said pipe and being ot a construction and arrangement t'or governingr the uniformity ot' the oil supply to the Miet, means on the jet for regulating the oil in its iiou' into the cup, and means for conveying air from the air tube and distributing it at diametrically opposite pointsl relatively to the exterior ot' the cu 19. n a device tor the purpose indicated, a casing, a burner proper in thercasing comprising a burner cup, and an oil feed pipe terminating in a dmvnturned oil jet extending into the cup, a sleeve adjustable on the jet and extending into the cup and adjustable relatively to the bottom of the cup for regulating tbc oil inits loiv into the cup, and means tor suplying' airexteriorl of the cup at a lplurality ot diametrirally opposite points.

2 In a device for the purpose indicated, a casing, a burner proper in the easing comprising a burner cup, and an oil Vfeed pipe terminating in a downturned oil jet extend ing into the cup, a Fleery adjustable ou the iet and extending into the cup and adjustable relatively to the bottoni oi the cup tor regulating the oil in its flow into the eup. means for supplying air exterior-ly ot' the cup at a plurality ot diametrieally opposite points, and a fibrous absorbent on the cup movable on the sleeve.

2l. l'n a device for the purpose indicated, a easing. a burner proper compri ing a gradual feedioil jet, an -oil Cup into which the jet extends, means communicating with the atmosphere under the casing tor delivering air exteriorly of the cup at diametrically opposite points thereof` means for earrying the oil to the cup and having means to regulate the feed to provide different ut uniform supplies of oil to the cup,

n an apparatus for the purpose indicated, a casing, an air chamber on the bottom ot' the casing and being in communication with the atmosphere under the bottom. of the casing, an air tube rising upwardly from the bottom ot' the air chamber und being in cnmmunic'ation with the a-tdelvering air to the burner ab a pluralit mosphere under the casing, a re pot a=dof damerticallv opposite points, and meta instable on said air tube, a second air chamlic wool contained in the fire pt, in order 10 er on the uppfn end o* the air tube, :L to facilitgmte the burning of the oil. 5 burner snpported thereon, .means for sup- In testlmony whereof I hereunto ax my v plymg 011 to ehh@ burner, said second eur signature.

chamber having a 'plurality of branches for HENRY B. HEMPHILL. 

